scholarly journals Combining Unthrottled Operation with Internal EGR under Port and Central Direct Fuel Injection Conditions in a Single Cylinder SI Engine

2009 ◽  
Author(s):  
Alasdair Cairns ◽  
Alan Todd ◽  
Hermann Hoffman ◽  
Pavlos Aleiferis ◽  
John Malcolm
Keyword(s):  
Fuel Injection ◽  
Si Engine ◽  
Single Cylinder ◽  
Direct Fuel Injection

Gasoline Fuel Injection Investigations On Single Cylinder SI Engine

2005 ◽  
Author(s):  
A. A. Latey ◽  
T. S. Bhatti ◽  
L. M. Das ◽  
M. K. Gajendra Babu
Keyword(s):  
Fuel Injection ◽  
Si Engine ◽  
Single Cylinder

Performance of SI Engine to Improve the Combustion Characteristics by Using Methanol Blended Petrol

2015 ◽  
Vol 813-814 ◽  
pp. 857-861
Author(s):  
A.N. Basavaraju ◽  
Mallikappa ◽  
B. Yogesha
Keyword(s):  
Fuel Injection ◽  
Fuel Efficiency ◽  
Combustion Process ◽  
Injection Pressure ◽  
Operating Conditions ◽  
Injection System ◽  
Optimum Operating ◽  
Injection Timing ◽  
Si Engine ◽  
Single Cylinder

The present energy situation has stimulated active research interest in non-petroleum and non-polluting fuels, particularly for transportation, power generation, and agricultural sectors. This paper describes feasibility of utilization of Spark ignition (SI) engine in single fuel mode and to develop the optimum operating conditions in terms of fuel injection timing and fuel injection pressure. Many modifications were made for the developed direct fuel injection system to improve the performance of the 350 cc four stroke single cylinder petrol engine. The engine is tested to conduct performance, combustion emission characteristics with the aid of carburetor. As single cylinder small engines have low compression ratio (CR), and they run with slightly rich mixture, their power are low and emission values are high. In this study, methanol was used to increase performance and decrease emissions of a single-cylinder engine. Initially, the engine whose CR was 7.5/1 was tested with gasoline and methanol at full load and various speeds. This method is used for increasing the fuel efficiency of a vehicle by adding different percentage of methanol to the petrol and to decrease the pollutants produced during combustion process.

scholarly journals Alcohol flexible HD single cylinder diesel engine tests with separate dual high pressure direct fuel injection

Fuel ◽  
2021 ◽  
Vol 294 ◽  
pp. 120478
Author(s):  
Michael Saccullo ◽  
Andreas Nygren ◽  
Timothy Benham ◽  
Ingemar Denbratt
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Fuel Injection ◽  
Single Cylinder ◽  
Direct Fuel Injection

Particulate matter emissions from flex-fuel vehicles with direct fuel injection

2021 ◽  
pp. 101078
Author(s):  
Luiz C. Daemme ◽  
Renato Penteado ◽  
Rodrigo S. Ferreira ◽  
Marcelo R. Errera ◽  
Sergio M. Corrêa ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Fuel Injection ◽  
Particulate Matter Emissions ◽  
Flex Fuel ◽  
Direct Fuel Injection

Thermodynamic Analysis of a Multi-Fueled Single Cylinder SI Engine

2011 ◽  
Author(s):  
M. Z. Haq ◽  
M. R. Mohiuddin
Keyword(s):  
Thermodynamic Analysis ◽  
Chemical Properties ◽  
Second Law Of Thermodynamics ◽  
Second Law ◽  
Si Engine ◽  
Gaseous Species ◽  
Single Cylinder ◽  
Engine Cylinder ◽  
Si Engines

The paper presents a thermodynamic analysis of a single cylinder four-stroke spark-ignition (SI) engine fuelled by four fuels namely iso-octane, methane, methanol and hydrogen. In SI engines, due to phenomena like ignition delay and finite flame speed manifested by the fuels, the heat addition process is not instantaneous, and hence ‘Weibe function’ is used to address the realistic heat release scenario of the engine. Empirical correlations are used to predict the heat loss from the engine cylinder. Physical states and chemical properties of gaseous species present inside the cylinder are determined using first and second law of thermodynamics, chemical kinetics, JANAF thermodynamic data-base and NASA polynomials. The model is implemented in FORTRAN 95 using standard numerical routines and some simulation results are validated against data available in literature. The second law of thermodynamics is applied to estimate the change of exergy i.e. the work potential or quality of the in-cylinder mixture undergoing various phases to complete the cycle. Results indicate that, around 4 to 24% of exergy initially possessed by the in-cylinder mixture is reduced during combustion and about 26 to 42% is left unused and exhausted to the atmosphere.

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